This is a gasket mount vaulted switch plate case design for the Hillside 48 (non-splay version). The top and bottom fasten with 6mm x 3mm neodymium magnets. There is optional tenting via M3 heatset inserts. The diffuser piece for underglow is intended to be glued in place with either hot glue or superglue. The optional component cover fastens to the switch plate via 3mm x 2mm neodymium magnets.
6mm Magnets: https://www.amazon.com/DIYMAG-6x3mm-Refrigerator-Premium-Brushed/dp/B07KZQGWNN
M3 heatset inserts: https://www.amazon.com/dp/B07LBRB5HL?psc=1&ref=ppx_yo2_dt_b_product_details
The author marked this model as their own original creation.